Hello,

My new digital boost gauge can monitor narrowbad AFR's and has the three different colored bars around it kinda like the AEM does.

Just to be clear I'm only hooking it up for looks so please no lectures about me should be using a wideband instead because I will be monitoring that through my interceptors lol....

I'm prettty sure that the Pre-Cat O2 sensor right after the turbo is a wideband, And I believe the one after it is a narrowband, is that accurate ?

If so, the 2nd sensor will have 4 wires I believe, does any one know off the top of their head which wire is the return back signal wire that I need to tap into ? I haven't hooked up a narrowband in a while and you save me the trouble lol....

Thanks

 

i think you are correct.

on my lsj its like this

header with upstream 02

precat wideband

post cat downstream 02

thats what zzp matt told me

for airfuels to work right they gotta be precat no matter what

 

dont bother hooking it up, its annoying, i had one in my ricer days and all it does is jump around the range constantly, if u want that annoying crap why u drive, then hool it up to a boost sensor or something, at least then it will behave and actually tell u something, if that even works

 

You are correct about the sensors. Idk which wire though iirc it's only two wires on post cat o2

 

I see, thanks folks.

I just want some extra colors in there, I dont mind the jumping around haha...

If i was to hook it up to somthing else it has to be 1volts as thats what narrowband sends, a wideband sends 5volts